Vulnerability CVE-2017-18076
Published: 2018-01-26

Description:
In strategy.rb in OmniAuth before 1.3.2, the authenticity_token value is improperly protected because POST (in addition to GET) parameters are stored in the session and become available in the environment of the callback phase.

Type:

CWE-noinfo

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Omniauth -> Omniauth 
Debian -> Debian linux 

 References:
https://bugs.debian.org/888523
https://github.com/omniauth/omniauth/pull/867
https://github.com/omniauth/omniauth/pull/867/commits/71866c5264122e196847a3980c43051446a03e9b
https://www.debian.org/security/2018/dsa-4109
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